Charge is the properties of matter. According to Benjamin franklin there are two types of charge, (1) Positive charge and (2) Negative charge.

Electric charge is a scalar quantity.

In SI System, the unit of Electric charge is Coulomb.

The dimensional formula of Electric charge is [ M

Electric charge is a scalar quantity.

In SI System, the unit of Electric charge is Coulomb.

The dimensional formula of Electric charge is [ M

^{0}L^{0}T^{1}A^{1}]#### Coulomb's law

The force on a test charge Q due to a single point charge q is given by coulomb's law $$\vec{F} = \frac{1}{4\pi \epsilon_0 } \frac{Qq}{r^2} \hat{r}$$ Where r is the distance between Q and q and ε_{0} is the permitivity of the free space.

#### Electric field

The force per unit charge that would be exerted on a test charge is called electric field.

#### Electric flux

$$\Delta \phi = \vec{E}.\Delta S$$

#### Gauss's law

Electric flux ( φ ) through a closed surface (S) enclosing the total charge (q) is given by,

$$\phi = \frac{q}{\epsilon_0}$$

That is is the Gauss's law.

#### Electric dipole

If two equal and opposite charges +q and -q are separated by a distance 2d, then this arrangement is called electric dipole.